Home / 2,682.92-4,021.70-1,274.86

Finding the Fourth Proportional to 2,682.92, 4,021.70 and 1,274.86

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Solution

The fourth proportional to 2,682.92, 4,021.70 and 1,274.86 is: 1,911.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.92 : 4,021.70 = 1,274.86 : x
  2. Step 2: Convert to fraction form
    2,682.92/4,021.70 = 1,274.86/x
  3. Step 3: Cross multiply
    2,682.92x = 4,021.70 × 1,274.86
  4. Step 4: Simplify right side
    2,682.92x = 5,127,105.51
  5. Step 5: Solve for x
    x = 5,127,105.51/2,682.92
  6. Step 6: Final answer
    x = 1,911.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.